Dog clutch



FIG. 1 is a top perspective view of a dog clutch of the present invention;

FIG. 2 is top view thereof;

FIG. 3 is a bottom view thereof; and,

FIG. 4 is a first side view thereof, wherein the second, third, and fourth side views are mirror images thereof.

The broken lines shown in the drawings are for the purpose of illustrating portions of the article that form no part of the claimed design. 

CLAIM I claim the ornamental design for a dog clutch, as shown and described. 